Finishing method capable of improving durable waterproof function of chinlon fabric

Abstract

The invention provides a finishing method capable of improving the durable waterproof function of a chinlon fabric. The finishing method comprises the following steps: (1) providing a dyed chinlon fabric; (2) pre-treating the dyed chinlon fabric by a pre-treatment working liquid, the pre-treatment working liquid containing a finishing agent DMY-3683 and a cross-linking agent DMY-3684; and (3) carrying out waterproof finishing on the pre-treated dyed chinlon fabric. The finishing method provided by the invention has the following advantages that the chinlon fabric is directly pre-treated by the pre-treatment liquid containing the finishing agent and the cross-linking agent after being dyed, and the waterproof finishing is carried out after the pre-treatment; a conventional colour fixation process is replaced by the pre-treatment process, thus the washability of the waterproof finishing can be improved, the improvement degree is superior to an effect of adding a bridging agent in the waterproof finishing, and the final colour fastness is equivalent to that of a conventional process; processing procedures are not added in the finishing method provided by the invention, the colour fastness is not reduced, and the durable washability of the waterproof function can be remarkably improved.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to a finishing method for improving the durable waterproof function of nylon fabrics. Background technique [0002] Nylon fiber is the fiber with the best hygroscopicity among synthetic fibers, and has high strength and impact resistance. It is widely used in industrial textiles, decorative fabrics and clothing fabrics, such as cord fabrics, ropes, parachutes, sportswear, down jackets, military uniforms, Outdoor clothing fabrics, etc., and waterproof functional finishing is one of the most commonly used chemical functional finishing methods in nylon textiles. [0003] Waterproof finishing is to apply a waterproof agent when the fabric is shaped, and cross-linking occurs on the fabric surface after baking to reduce the surface tension of the fiber and realize the waterproof function. During the washing process, the waterproofing agent is easy to fall off from the fiber, re...

AI Technical Summary

Problems solved by technology

During the washing process, the waterproofing agent is easy to fall off from the fiber, resulting in a decline in the waterproofing effect, and the washing resistance is often improved by adding isocyanate bridging agents during finishing, but the bridging agents are expensive and still cannot meet the requirements of repeated washing After the waterproof function requirements

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